// This file is part of Indico.
// Copyright (C) 2002 - 2025 CERN
//
// Indico is free software; you can redistribute it and/or
// modify it under the terms of the MIT License; see the
// LICENSE file for more details.

@use 'base' as *;

$i-button-background-color: darken($light-gray, 5%);
$i-button-spacing: 0.3rem;

@mixin button {
  user-select: none;
  @include default-border-radius();
  @include border-all();
  display: inline-block;
  cursor: pointer;
  color: $light-black;
  text-align: center;
  vertical-align: middle;
}

@mixin button-disabled {
  color: $gray !important;
  cursor: default;

  &:not(.borderless) {
    border-color: $default-border-color !important;
    background: $i-button-background-color !important;
    box-shadow: none !important;
  }
}

@mixin _i-button-borderless($color, $dark-color) {
  &.borderless {
    box-shadow: none !important;
    background: none !important;
    border-color: transparent !important;
    color: $color;

    &:hover,
    &:active {
      color: $dark-color;
    }
  }
}

@mixin _i-button-outlines($color, $dark-color) {
  &.text-color {
    &:not(.color-on-hover) {
      color: $color;
    }

    &.color-on-hover:hover {
      color: $color;
    }

    &:hover,
    &:active {
      color: $dark-color;
    }

    &.outline {
      border-color: $color;
      background: white;
    }

    &.dashed {
      border-style: dashed;
      background: white;
    }

    &.subtle:not(:hover):not(:active) {
      box-shadow: none;
      background: transparent;
      border-color: transparent;
    }
  }
}

@mixin i-button-states(
  $flavor-color,
  $border-color,
  $border-accent-color,
  $font-color,
  $font-accent-color,
  $with-modes: true
) {
  $flavor-darkened-color: darken($flavor-color, 5%);
  $no-modes: '';

  @if $with-modes == true {
    $no-modes: ':not(.borderless):not(.text-color)';
  }

  &:not(.label)#{$no-modes} {
    background: $flavor-color;
    border-color: $border-color;
    color: $font-color;

    &:hover,
    &:active {
      border-color: $border-accent-color;
      color: $font-accent-color;
    }

    &:hover {
      @include gradient($flavor-color, $flavor-darkened-color);
    }

    &:active,
    &.open {
      @include gradient($flavor-darkened-color, $flavor-color);
    }
  }
}

@mixin i-button-flavor($flavor-color, $border-color) {
  $flavor-darkened-color: darken($flavor-color, 5%);
  @include i-button-states($flavor-color, $border-color, $border-color, $light-gray, white);
  @include _i-button-borderless($flavor-color, $flavor-darkened-color);
  @include _i-button-outlines($flavor-color, $flavor-darkened-color);
}

@mixin i-button-custom($line-height: 1.6em, $font-size: 1.1em) {
  @include button();
  box-sizing: content-box;

  border: none;
  width: $line-height;
  height: $line-height;

  i {
    line-height: $line-height;
    font-size: $font-size;
  }

  &:hover i {
    color: darken($light-black, $color-variation);
  }
}

.i-button {
  @include button();
  @include transition(color);
  @include i-button-states(
    $i-button-background-color,
    $default-border-color,
    $gray,
    $light-black,
    $black,
    false
  );
  @include _i-button-borderless($light-black, $black);
  @include _i-button-outlines($light-black, $black);
  margin: 0;
  padding: 4px 10px 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;

  & ~ .i-button,
  & ~ .group {
    margin-left: $i-button-spacing;
  }

  &:hover {
    box-shadow: 1px 1px 4px rgba(20, 20, 20, 0.1);
  }

  &:active,
  &.open {
    box-shadow: 1px 1px 4px rgba(20, 20, 20, 0.1) inset;
  }

  &:disabled,
  &.disabled {
    @include button-disabled();
  }

  &[class*='icon-'] {
    &::before {
      font-size: 1.2em;
    }

    &:not(:empty)::before {
      margin-right: 0.5em;
    }
  }

  &.accept {
    @include i-button-flavor($green, $dark-green);
  }

  &.danger {
    @include i-button-flavor($red, $dark-red);
  }

  &.highlight {
    @include i-button-flavor($blue, $dark-blue);
  }

  &.warning {
    @include i-button-flavor($yellow, $dark-yellow);
  }

  &.label,
  &.label:hover,
  &.label:active {
    background: white;
    box-shadow: none;
    color: $light-black;
    cursor: default;
    font-weight: normal;

    &.heavy {
      background: $light-gray;
    }

    &.active {
      background-color: $light-yellow;
      border-color: $dark-yellow;
      color: $dark-yellow;
    }

    &.clickable {
      cursor: pointer;
    }
  }
}

// Fix for Firefox
button.i-button,
input.i-button[type='submit'] {
  line-height: 1em;

  &[class*='icon-'] {
    &::before {
      vertical-align: -15%;
    }
  }

  &.arrow::after {
    vertical-align: -10%;
  }
}

a.i-big-button {
  $size: 60px;
  @include button();

  background: #fff;
  width: $size;
  height: $size;

  i {
    display: block;
    font-size: 3em;
    line-height: ($size / 3) * 2;
  }

  span {
    font-weight: bold;
    line-height: $size / 3;
    overflow: hidden;
    white-space: nowrap;
  }

  &:hover {
    background: $light-black;
    transition: background 0.25s ease-out;

    > i,
    > span {
      color: white;
      transition: color 0.25s ease-out;
    }
  }

  &.icon-only {
    i {
      line-height: $size;
    }
  }
}

.i-button.next {
  @include icon-after('icon-next');
  font-weight: bold;
}

button::-moz-focus-inner {
  border: 0;
}

.fav-button.enabled:hover {
  color: #f5f1c5 !important;
}

.fav-button.enabled {
  background-color: #fad74c;
  background-image: linear-gradient(to bottom, #fad74c, #dac34a);

  border-color: #b6ad6f;
  color: #e2e28b !important;
  text-shadow: 0 0 1px rgba(0, 0, 0, 0.5);
  box-shadow: 0 0 6px #e6db64;
}

/* ******************** */

/* Button modifications */

/* ******************** */
.i-button.big[class*='icon-']::before {
  display: block;
  font-size: 2em;
  margin-right: 0;
  margin-bottom: 0.2em;
  text-align: center;
}

.i-button.big {
  padding: 0.7em;
  font-weight: bold;
  font-size: 1.1em;
}

.i-button-small {
  font-size: 11px;
  line-height: 16px;
  padding: 9px;
}

.i-button.inline {
  padding: 0;
}

.i-button.right {
  margin-right: 5px;
  margin-top: 5px;
}

.i-button.bottom {
  margin-top: 1em;
}

.i-button[class*='icon-'].icon-only::before {
  margin-right: 0;
}

.i-button > [class*='icon-']::before {
  font-size: 1.2em;
  vertical-align: -15%;
}

a.arrow,
.i-button.arrow {
  @include icon-after('icon-arrow-down');
}

.i-button.color-button {
  @include icon-before(icon-text-color);

  padding: 1px;
  border-radius: 50%;
  vertical-align: baseline;
}

.i-button.height-full {
  height: 100%;
}

/* Remove special border added in Firefox */
button::-moz-focus-inner,
input[type='button']::-moz-focus-inner,
input[type='submit']::-moz-focus-inner,
input[type='reset']::-moz-focus-inner {
  border: 0 none !important;
}
